AQSQID: 401090097

Site Name: Near Road Okc

Location: Oklahoma City, OK

Reporting: True, Located: True

Current AQI: 28.0

Oklahoma City OK, US: 35.502968, -97.577674

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 17, 2019, 11 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 10.0 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
Jan. 17, 2019, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 16.0 μg/m3 (15) 11.9 μg/m3 (50) 50.0
 
Jan. 17, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 11.0 μg/m3 (10) 8.6 μg/m3 (36) 36.0
 
Jan. 17, 2019, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.4 ppb (4) 11.0 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
Jan. 17, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.4 ppb (4) 17.0 μg/m3 (15) 12.3 μg/m3 (51) 51.0
 
Jan. 17, 2019, 6 a.m. 12.0 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) 21.0 μg/m3 (19) 15.6 μg/m3 (58) 58.0
 
Jan. 17, 2019, 5 a.m. 36.0 ppb (33) 27.0 ppb (25) N/A 9.0 ppb (8) N/A N/A N/A 0.6 ppb (7) 26.0 μg/m3 (24) 18.8 μg/m3 (64) 64.0
 
Jan. 17, 2019, 4 a.m. 61.0 ppb (57) 51.0 ppb (47) N/A 10.0 ppb (9) N/A N/A N/A 0.8 ppb (9) 29.0 μg/m3 (26) 20.2 μg/m3 (67) 67.0
 
Jan. 17, 2019, 3 a.m. 57.0 ppb (53) 45.0 ppb (42) N/A 12.0 ppb (11) N/A N/A N/A 0.8 ppb (9) 28.0 μg/m3 (25) 19.2 μg/m3 (65) 65.0
 
Jan. 17, 2019, 2 a.m. 47.0 ppb (44) 34.0 ppb (31) N/A 13.0 ppb (12) N/A N/A N/A 0.7 ppb (8) 29.0 μg/m3 (26) 18.7 μg/m3 (64) 64.0
 
Jan. 17, 2019, 1 a.m. 49.0 ppb (45) 35.0 ppb (32) N/A 13.0 ppb (12) N/A N/A N/A 0.7 ppb (8) 28.0 μg/m3 (25) 18.5 μg/m3 (64) 64.0
 
Jan. 17, 2019, midnight 54.0 ppb (50) 41.0 ppb (38) N/A 12.0 ppb (11) N/A N/A N/A 0.8 ppb (9) 30.0 μg/m3 (27) 17.8 μg/m3 (62) 62.0
 
Jan. 16, 2019, 11 p.m. 50.0 ppb (46) 39.0 ppb (36) N/A 11.0 ppb (10) N/A N/A N/A 0.7 ppb (8) 25.0 μg/m3 (23) 15.9 μg/m3 (58) 58.0
 
Jan. 16, 2019, 10 p.m. 53.0 ppb (49) 43.0 ppb (40) N/A 10.0 ppb (9) N/A N/A N/A 0.8 ppb (9) 21.0 μg/m3 (19) 12.6 μg/m3 (51) 51.0
 
Jan. 16, 2019, 9 p.m. 65.0 ppb (62) 54.0 ppb (50) N/A 11.0 ppb (10) N/A N/A N/A 0.8 ppb (9) 22.0 μg/m3 (20) 12.5 μg/m3 (51) 62.0
 
Jan. 16, 2019, 8 p.m. 69.0 ppb (66) 59.0 ppb (55) N/A 9.0 ppb (8) N/A N/A N/A 0.8 ppb (9) 31.0 μg/m3 (28) 17.6 μg/m3 (62) 66.0
 
Jan. 16, 2019, 7 p.m. 61.0 ppb (57) 51.0 ppb (47) N/A 9.0 ppb (8) N/A N/A N/A 0.7 ppb (8) 33.0 μg/m3 (30) 19.1 μg/m3 (65) 65.0
 
Jan. 16, 2019, 6 p.m. 59.0 ppb (55) 49.0 ppb (45) N/A 9.0 ppb (8) N/A N/A N/A 0.7 ppb (8) 34.0 μg/m3 (31) 19.8 μg/m3 (67) 67.0
 
Jan. 16, 2019, 5 p.m. 51.0 ppb (47) 44.0 ppb (41) N/A 7.0 ppb (6) N/A N/A N/A 0.7 ppb (8) 30.0 μg/m3 (27) 17.4 μg/m3 (61) 61.0
 
Jan. 16, 2019, 4 p.m. 51.0 ppb (47) 43.0 ppb (40) N/A 8.0 ppb (7) N/A N/A N/A 0.7 ppb (8) 25.0 μg/m3 (23) 14.7 μg/m3 (56) 56.0
 
Jan. 16, 2019, 3 p.m. 54.0 ppb (50) 47.0 ppb (44) N/A 6.0 ppb (6) N/A N/A N/A 0.7 ppb (8) 31.0 μg/m3 (28) 17.1 μg/m3 (61) 61.0
 
Jan. 16, 2019, 2 p.m. 66.0 ppb (63) 58.0 ppb (54) N/A 8.0 ppb (7) N/A N/A N/A 0.8 ppb (9) 36.0 μg/m3 (33) 22.9 μg/m3 (73) 73.0
 
Jan. 16, 2019, 1 p.m. 51.0 ppb (47) 42.0 ppb (39) N/A 8.0 ppb (7) N/A N/A N/A 0.8 ppb (9) 37.0 μg/m3 (34) 23.3 μg/m3 (74) 74.0
 
Jan. 16, 2019, noon 51.0 ppb (47) 40.0 ppb (37) N/A 10.0 ppb (9) N/A N/A N/A 0.8 ppb (9) 38.0 μg/m3 (35) 24.0 μg/m3 (76) 76.0
 
Jan. 16, 2019, 11 a.m. 43.0 ppb (40) 31.0 ppb (29) N/A 11.0 ppb (10) N/A N/A N/A 0.7 ppb (8) 36.0 μg/m3 (33) 23.8 μg/m3 (75) 75.0
 
Jan. 16, 2019, 10 a.m. 32.0 ppb (30) 20.0 ppb (19) N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) 36.0 μg/m3 (33) 23.5 μg/m3 (74) 74.0
 
Jan. 16, 2019, 9 a.m. 28.0 ppb (26) 14.0 ppb (13) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) 35.0 μg/m3 (32) 22.5 μg/m3 (72) 72.0
 
Jan. 16, 2019, 8 a.m. 30.0 ppb (28) 14.0 ppb (13) N/A 15.0 ppb (14) N/A N/A N/A 0.5 ppb (6) 35.0 μg/m3 (32) 21.9 μg/m3 (71) 71.0
 
Jan. 16, 2019, 7 a.m. 27.0 ppb (25) 12.0 ppb (11) N/A 15.0 ppb (14) N/A N/A N/A 0.5 ppb (6) 33.0 μg/m3 (30) 21.6 μg/m3 (70) 70.0
 
Jan. 16, 2019, 6 a.m. 33.0 ppb (31) 18.0 ppb (17) N/A 14.0 ppb (13) N/A N/A N/A 0.5 ppb (6) 34.0 μg/m3 (31) 21.3 μg/m3 (70) 70.0
 
Jan. 16, 2019, 5 a.m. 38.0 ppb (35) 24.0 ppb (22) N/A 14.0 ppb (13) N/A N/A N/A 0.6 ppb (7) 33.0 μg/m3 (30) 20.5 μg/m3 (68) 68.0
 
Jan. 16, 2019, 4 a.m. 37.0 ppb (34) 24.0 ppb (22) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) 31.0 μg/m3 (28) 19.3 μg/m3 (66) 66.0
 
Jan. 16, 2019, 3 a.m. 43.0 ppb (40) 30.0 ppb (28) N/A 13.0 ppb (12) N/A N/A N/A 0.7 ppb (8) 32.0 μg/m3 (29) 19.9 μg/m3 (67) 67.0
 
Jan. 16, 2019, 2 a.m. 44.0 ppb (41) 30.0 ppb (28) N/A 14.0 ppb (13) N/A N/A N/A 0.7 ppb (8) 32.0 μg/m3 (29) 18.5 μg/m3 (64) 64.0
 
Jan. 16, 2019, 1 a.m. 45.0 ppb (42) 32.0 ppb (30) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) 41.0 μg/m3 (37) 14.5 μg/m3 (55) 55.0
 
Jan. 16, 2019, midnight 32.0 ppb (30) 20.0 ppb (19) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) 19.0 μg/m3 (17) 10.3 μg/m3 (43) 43.0
 
Jan. 15, 2019, 11 p.m. 12.0 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 17.0 μg/m3 (15) 9.7 μg/m3 (40) 40.0
 
Jan. 15, 2019, 10 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 16.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
Jan. 15, 2019, 9 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) 16.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
Jan. 15, 2019, 8 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) 16.0 μg/m3 (15) 10.1 μg/m3 (42) 42.0
 
Jan. 15, 2019, 7 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 17.0 μg/m3 (15) 9.7 μg/m3 (40) 40.0
 
Jan. 15, 2019, 6 p.m. 9.0 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A 0.4 ppb (4) 19.0 μg/m3 (17) 11.4 μg/m3 (48) 48.0
 
Jan. 15, 2019, 5 p.m. 25.0 ppb (23) 18.0 ppb (17) N/A 7.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 31.0 μg/m3 (28) 17.1 μg/m3 (61) 61.0
 
Jan. 15, 2019, 4 p.m. 40.0 ppb (37) 32.0 ppb (30) N/A 8.0 ppb (7) N/A N/A N/A 0.6 ppb (7) 40.0 μg/m3 (36) 22.2 μg/m3 (72) 72.0
 
Jan. 15, 2019, 3 p.m. 39.0 ppb (36) 29.0 ppb (27) N/A 9.0 ppb (8) N/A N/A N/A 0.5 ppb (6) 41.0 μg/m3 (37) 23.8 μg/m3 (75) 75.0
 
Jan. 15, 2019, 2 p.m. 58.0 ppb (54) 45.0 ppb (42) N/A 13.0 ppb (12) N/A N/A N/A 0.8 ppb (9) 42.0 μg/m3 (38) 24.9 μg/m3 (77) 77.0
 
Jan. 15, 2019, 1 p.m. 50.0 ppb (46) 34.0 ppb (31) N/A 16.0 ppb (15) N/A N/A N/A 0.6 ppb (7) 39.0 μg/m3 (35) 23.8 μg/m3 (75) 75.0
 
Jan. 15, 2019, noon 55.0 ppb (51) 39.0 ppb (36) N/A 15.0 ppb (14) N/A N/A N/A 0.7 ppb (8) 37.0 μg/m3 (34) 22.4 μg/m3 (72) 72.0
 
Jan. 15, 2019, 11 a.m. 24.0 ppb (22) 9.0 ppb (8) N/A 14.0 ppb (13) N/A N/A N/A 0.5 ppb (6) 30.0 μg/m3 (27) 20.8 μg/m3 (69) 69.0
 
Jan. 15, 2019, 10 a.m. 26.0 ppb (24) 9.0 ppb (8) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) 27.0 μg/m3 (25) 19.3 μg/m3 (66) 66.0
 
Jan. 15, 2019, 9 a.m. 20.0 ppb (19) 6.0 ppb (6) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) 26.0 μg/m3 (24) 18.2 μg/m3 (63) 63.0
 
Jan. 15, 2019, 8 a.m. 17.0 ppb (16) 3.0 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) 24.0 μg/m3 (22) 17.7 μg/m3 (62) 62.0
 
Jan. 15, 2019, 7 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) 23.0 μg/m3 (21) 17.8 μg/m3 (62) 62.0
 
Jan. 15, 2019, 6 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 16.7 μg/m3 (60) 60.0
 
Jan. 15, 2019, 5 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) 21.0 μg/m3 (19) 15.0 μg/m3 (56) 56.0
 
Jan. 15, 2019, 4 a.m. 18.0 ppb (17) 4.0 ppb (4) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) 21.0 μg/m3 (19) 14.9 μg/m3 (56) 56.0
 
Jan. 15, 2019, 3 a.m. 14.0 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) 22.0 μg/m3 (20) 14.8 μg/m3 (56) 56.0
 
Jan. 15, 2019, 2 a.m. 26.0 ppb (24) 8.0 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) 26.0 μg/m3 (24) 15.2 μg/m3 (57) 57.0
 
Jan. 15, 2019, 1 a.m. 72.0 ppb (69) 46.0 ppb (43) N/A 26.0 ppb (24) N/A N/A N/A 0.8 ppb (9) 36.0 μg/m3 (33) 16.5 μg/m3 (60) 69.0
 
Jan. 15, 2019, midnight 87.0 ppb (85) 60.0 ppb (56) N/A 27.0 ppb (25) N/A N/A N/A 1.0 ppb (11) 37.0 μg/m3 (34) 16.8 μg/m3 (60) 85.0
 
Jan. 14, 2019, 11 p.m. 75.0 ppb (72) 52.0 ppb (48) N/A 23.0 ppb (21) N/A N/A N/A 0.9 ppb (10) 33.0 μg/m3 (30) 15.3 μg/m3 (57) 72.0
 
Jan. 14, 2019, 10 p.m. 52.0 ppb (48) 34.0 ppb (31) N/A 17.0 ppb (16) N/A N/A N/A 0.7 ppb (8) 33.0 μg/m3 (30) 15.8 μg/m3 (58) 58.0
 
Jan. 14, 2019, 9 p.m. 51.0 ppb (47) 36.0 ppb (33) N/A 14.0 ppb (13) N/A N/A N/A 0.6 ppb (7) 35.0 μg/m3 (32) 17.4 μg/m3 (61) 61.0
 
Jan. 14, 2019, 8 p.m. 35.0 ppb (32) 25.0 ppb (23) N/A 10.0 ppb (9) N/A N/A N/A 0.5 ppb (6) 33.0 μg/m3 (30) 17.7 μg/m3 (62) 62.0
 
Jan. 14, 2019, 7 p.m. 21.0 ppb (19) 14.0 ppb (13) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 30.0 μg/m3 (27) 17.2 μg/m3 (61) 61.0
 
Jan. 14, 2019, 6 p.m. 17.0 ppb (16) 10.0 ppb (9) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 30.0 μg/m3 (27) 18.2 μg/m3 (63) 63.0
 
Jan. 14, 2019, 5 p.m. 11.0 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 27.0 μg/m3 (25) 17.4 μg/m3 (61) 61.0
 
Jan. 14, 2019, 4 p.m. 35.0 ppb (32) 23.0 ppb (21) N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) 32.0 μg/m3 (29) 18.2 μg/m3 (63) 63.0
 
Jan. 14, 2019, 3 p.m. 22.0 ppb (20) 12.0 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) 27.0 μg/m3 (25) 16.3 μg/m3 (59) 59.0
 
Jan. 14, 2019, 2 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) 24.0 μg/m3 (22) 17.0 μg/m3 (61) 61.0
 
Jan. 14, 2019, 1 p.m. 10.0 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 20.0 μg/m3 (18) 15.1 μg/m3 (57) 57.0
 
Jan. 14, 2019, noon 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 21.0 μg/m3 (19) 15.4 μg/m3 (57) 57.0
 
Jan. 14, 2019, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 15.8 μg/m3 (58) 58.0
 
Jan. 14, 2019, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 20.0 μg/m3 (18) 15.1 μg/m3 (57) 57.0
 
Jan. 14, 2019, 9 a.m. 12.0 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) 23.0 μg/m3 (21) 16.7 μg/m3 (60) 60.0
 
Jan. 14, 2019, 8 a.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 22.0 μg/m3 (20) 16.1 μg/m3 (59) 59.0
 
Jan. 14, 2019, 7 a.m. 10.0 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 16.3 μg/m3 (59) 59.0
 
Jan. 14, 2019, 6 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) 24.0 μg/m3 (22) 17.4 μg/m3 (61) 61.0
 
Jan. 14, 2019, 5 a.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 16.7 μg/m3 (60) 60.0
 
Jan. 14, 2019, 4 a.m. 12.0 ppb (11) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 21.0 μg/m3 (19) 15.4 μg/m3 (57) 57.0
 
Jan. 14, 2019, 3 a.m. 12.0 ppb (11) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 17.0 μg/m3 (15) 12.3 μg/m3 (51) 51.0
 
Jan. 14, 2019, 2 a.m. 17.0 ppb (16) 9.0 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 18.0 μg/m3 (16) 13.1 μg/m3 (52) 52.0
 
Jan. 14, 2019, 1 a.m. 8.0 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 17.0 μg/m3 (15) 12.3 μg/m3 (51) 51.0
 
Jan. 14, 2019, midnight 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 17.0 μg/m3 (15) 12.5 μg/m3 (51) 51.0
 
Jan. 13, 2019, 11 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 18.0 μg/m3 (16) 13.5 μg/m3 (53) 53.0
 
Jan. 13, 2019, 10 p.m. 14.0 ppb (13) 7.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 18.0 μg/m3 (16) 13.6 μg/m3 (53) 53.0
 
Jan. 13, 2019, 9 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2019, 8 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 16.0 μg/m3 (15) 11.6 μg/m3 (48) 48.0
 
Jan. 13, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 20.0 μg/m3 (18) 15.5 μg/m3 (57) 57.0
 
Jan. 13, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (3) 19.0 μg/m3 (17) 15.0 μg/m3 (56) 56.0
 
Jan. 13, 2019, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 19.0 μg/m3 (17) 14.9 μg/m3 (56) 56.0
 
Jan. 13, 2019, 4 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 19.0 μg/m3 (17) 14.5 μg/m3 (55) 55.0
 
Jan. 13, 2019, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 17.0 μg/m3 (15) 13.4 μg/m3 (53) 53.0
 
Jan. 13, 2019, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 17.0 μg/m3 (15) 13.8 μg/m3 (54) 54.0
 
Jan. 13, 2019, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 24.0 μg/m3 (22) 22.0 μg/m3 (71) 71.0
 
Jan. 13, 2019, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (3) 30.0 μg/m3 (27) 27.2 μg/m3 (82) 82.0
 
Jan. 13, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (3) 23.0 μg/m3 (21) 19.9 μg/m3 (67) 67.0
 
Jan. 13, 2019, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (3) 21.0 μg/m3 (19) 17.0 μg/m3 (61) 61.0
 
Jan. 13, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (3) 24.0 μg/m3 (22) 20.2 μg/m3 (67) 67.0
 
Jan. 13, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (3) 29.0 μg/m3 (26) 25.3 μg/m3 (78) 78.0
 
Jan. 13, 2019, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (3) 28.0 μg/m3 (25) 24.2 μg/m3 (76) 76.0
 
Jan. 13, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (3) 28.0 μg/m3 (25) 23.4 μg/m3 (74) 74.0
 
Jan. 13, 2019, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 18.6 μg/m3 (64) 64.0
 
Jan. 13, 2019, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 18.3 μg/m3 (63) 63.0
 
Jan. 13, 2019, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 18.9 μg/m3 (65) 65.0
 
Jan. 13, 2019, 2 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 24.0 μg/m3 (22) 20.7 μg/m3 (69) 69.0
 
Jan. 13, 2019, 1 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 21.0 μg/m3 (19) 17.3 μg/m3 (61) 61.0
 
Jan. 13, 2019, midnight 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 20.0 μg/m3 (18) 16.7 μg/m3 (60) 60.0
 
Jan. 12, 2019, 11 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) 21.0 μg/m3 (19) 17.5 μg/m3 (62) 62.0
 
Jan. 12, 2019, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 18.0 μg/m3 (16) 15.5 μg/m3 (57) 57.0
 
Jan. 12, 2019, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 13.0 μg/m3 (12) 10.6 μg/m3 (44) 44.0
 
Jan. 12, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 8.0 μg/m3 (7) 5.5 μg/m3 (23) 23.0
 
Jan. 12, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 7.0 μg/m3 (6) 4.6 μg/m3 (19) 19.0
 
Jan. 12, 2019, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 8.0 μg/m3 (7) 5.8 μg/m3 (24) 24.0
 
Jan. 12, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Jan. 12, 2019, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 12.0 μg/m3 (11) 9.1 μg/m3 (38) 38.0
 
Jan. 12, 2019, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 9.0 μg/m3 (8) 6.6 μg/m3 (28) 28.0
 
Jan. 12, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 5.0 μg/m3 (5) 3.6 μg/m3 (15) 15.0
 
Jan. 12, 2019, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (3) 4.0 μg/m3 (4) 3.3 μg/m3 (14) 14.0
 
Jan. 12, 2019, noon 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 1.0 μg/m3 (1) 0.7 μg/m3 (3) 3.0
 
Jan. 12, 2019, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 1.0 μg/m3 (1) 0.7 μg/m3 (3) 3.0
 
Jan. 12, 2019, 10 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 3.0 μg/m3 (3) 2.3 μg/m3 (10) 10.0
 
Jan. 12, 2019, 9 a.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 7.0 μg/m3 (6) 4.7 μg/m3 (20) 20.0
 
Jan. 12, 2019, 8 a.m. 10.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 12.0 μg/m3 (11) 8.8 μg/m3 (37) 37.0
 
Jan. 12, 2019, 7 a.m. 13.0 ppb (12) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 11.0 μg/m3 (10) 8.2 μg/m3 (34) 34.0
 
Jan. 12, 2019, 6 a.m. 14.0 ppb (13) 8.0 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 11.0 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
Jan. 12, 2019, 5 a.m. 15.0 ppb (14) 9.0 ppb (8) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (9) 7.3 μg/m3 (30) 30.0
 
Jan. 12, 2019, 4 a.m. 18.0 ppb (17) 10.0 ppb (9) N/A 7.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 11.0 μg/m3 (10) 7.1 μg/m3 (30) 30.0
 
Jan. 12, 2019, 3 a.m. 22.0 ppb (20) 13.0 ppb (12) N/A 8.0 ppb (7) N/A N/A N/A 0.6 ppb (7) 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
Jan. 12, 2019, 2 a.m. 23.0 ppb (21) 14.0 ppb (13) N/A 8.0 ppb (7) N/A N/A N/A 0.5 ppb (6) 11.0 μg/m3 (10) 7.3 μg/m3 (30) 30.0
 
Jan. 12, 2019, 1 a.m. 32.0 ppb (30) 20.0 ppb (19) N/A 11.0 ppb (10) N/A N/A N/A 0.6 ppb (7) 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2019, midnight 41.0 ppb (38) 28.0 ppb (26) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) 12.0 μg/m3 (11) 7.1 μg/m3 (30) 38.0
 
Jan. 11, 2019, 11 p.m. 44.0 ppb (41) 29.0 ppb (27) N/A 14.0 ppb (13) N/A N/A N/A 0.6 ppb (7) 13.0 μg/m3 (12) 7.8 μg/m3 (32) 41.0
 
Jan. 11, 2019, 10 p.m. 44.0 ppb (41) 30.0 ppb (28) N/A 14.0 ppb (13) N/A N/A N/A 0.7 ppb (8) 15.0 μg/m3 (14) 8.5 μg/m3 (35) 41.0
 
Jan. 11, 2019, 9 p.m. 50.0 ppb (46) 35.0 ppb (32) N/A 15.0 ppb (14) N/A N/A N/A 0.7 ppb (8) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 46.0
 
Jan. 11, 2019, 8 p.m. 47.0 ppb (44) 32.0 ppb (30) N/A 15.0 ppb (14) N/A N/A N/A 0.6 ppb (7) 16.0 μg/m3 (15) 9.7 μg/m3 (40) 44.0
 
Jan. 11, 2019, 7 p.m. 47.0 ppb (44) 34.0 ppb (31) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) 18.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 16.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
Jan. 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 16.0 μg/m3 (15) 9.2 μg/m3 (38) 38.0
 
Jan. 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 23.0 μg/m3 (21) 12.4 μg/m3 (51) 51.0
 
Jan. 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 22.0 μg/m3 (20) 13.0 μg/m3 (52) 52.0
 
Jan. 11, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 25.0 μg/m3 (23) 11.1 μg/m3 (46) 46.0
 
Jan. 11, 2019, 1 p.m. 42.0 ppb (39) 29.0 ppb (27) N/A 12.0 ppb (11) N/A N/A N/A 0.7 ppb (8) 20.0 μg/m3 (18) 8.8 μg/m3 (37) 39.0
 
Jan. 11, 2019, noon 31.0 ppb (29) 21.0 ppb (19) N/A 10.0 ppb (9) N/A N/A N/A 0.6 ppb (7) 17.0 μg/m3 (15) 7.9 μg/m3 (33) 33.0
 
Jan. 11, 2019, 11 a.m. 19.0 ppb (18) 11.0 ppb (10) N/A 7.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 16.0 μg/m3 (15) 7.2 μg/m3 (30) 30.0
 
Jan. 11, 2019, 10 a.m. 14.0 ppb (13) 7.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 14.0 μg/m3 (13) 6.4 μg/m3 (27) 27.0
 
Jan. 11, 2019, 9 a.m. 13.0 ppb (12) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 13.0 μg/m3 (12) 6.1 μg/m3 (25) 25.0
 
Jan. 11, 2019, 8 a.m. 8.0 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 12.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
Jan. 11, 2019, 7 a.m. 10.0 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 14.0 μg/m3 (13) 5.8 μg/m3 (24) 24.0
 
Jan. 11, 2019, 6 a.m. 12.0 ppb (11) 6.0 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 13.0 μg/m3 (12) 5.5 μg/m3 (23) 23.0
 
Jan. 11, 2019, 5 a.m. 16.0 ppb (15) 9.0 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 14.0 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
Jan. 11, 2019, 4 a.m. 26.0 ppb (24) 16.0 ppb (15) N/A 9.0 ppb (8) N/A N/A N/A 0.5 ppb (6) 15.0 μg/m3 (14) 5.6 μg/m3 (23) 24.0
 
Jan. 11, 2019, 3 a.m. 27.0 ppb (25) 17.0 ppb (16) N/A 10.0 ppb (9) N/A N/A N/A 0.5 ppb (6) 16.0 μg/m3 (15) 5.8 μg/m3 (24) 25.0
 
Jan. 11, 2019, 2 a.m. 34.0 ppb (31) 22.0 ppb (20) N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) 17.0 μg/m3 (15) 5.6 μg/m3 (23) 31.0
 
Jan. 11, 2019, 1 a.m. 35.0 ppb (32) 23.0 ppb (21) N/A 11.0 ppb (10) N/A N/A N/A 0.6 ppb (7) 18.0 μg/m3 (16) 6.1 μg/m3 (25) 32.0
 
Jan. 11, 2019, midnight 51.0 ppb (47) 35.0 ppb (32) N/A 16.0 ppb (15) N/A N/A N/A 0.7 ppb (8) 25.0 μg/m3 (23) 6.8 μg/m3 (28) 47.0
 
Jan. 10, 2019, 11 p.m. 51.0 ppb (47) 36.0 ppb (33) N/A 14.0 ppb (13) N/A N/A N/A 0.7 ppb (8) 22.0 μg/m3 (20) 5.7 μg/m3 (24) 47.0
 
Jan. 10, 2019, 10 p.m. 56.0 ppb (52) 39.0 ppb (36) N/A 16.0 ppb (15) N/A N/A N/A 0.7 ppb (8) 27.0 μg/m3 (25) 5.9 μg/m3 (25) 52.0
 
Jan. 10, 2019, 9 p.m. 57.0 ppb (53) 42.0 ppb (39) N/A 15.0 ppb (14) N/A N/A N/A 0.7 ppb (8) 29.0 μg/m3 (26) 6.1 μg/m3 (25) 53.0
 
Jan. 10, 2019, 8 p.m. 53.0 ppb (49) 37.0 ppb (34) N/A 16.0 ppb (15) N/A N/A N/A 0.7 ppb (8) 26.0 μg/m3 (24) 6.0 μg/m3 (25) 49.0
 
Jan. 10, 2019, 7 p.m. 46.0 ppb (43) 31.0 ppb (29) N/A 15.0 ppb (14) N/A N/A N/A 0.6 ppb (7) 25.0 μg/m3 (23) 5.7 μg/m3 (24) 43.0
 
Jan. 10, 2019, 6 p.m. 55.0 ppb (51) 38.0 ppb (35) N/A 17.0 ppb (16) N/A N/A N/A 0.7 ppb (8) 25.0 μg/m3 (23) 5.1 μg/m3 (21) 51.0
 
Jan. 10, 2019, 5 p.m. 55.0 ppb (51) 37.0 ppb (34) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) 30.0 μg/m3 (27) 5.8 μg/m3 (24) 51.0
 
Jan. 10, 2019, 4 p.m. 60.0 ppb (56) 42.0 ppb (39) N/A 18.0 ppb (17) N/A N/A N/A 0.7 ppb (8) 35.0 μg/m3 (32) 6.8 μg/m3 (28) 56.0
 
Jan. 10, 2019, 3 p.m. 67.0 ppb (64) 46.0 ppb (43) N/A 21.0 ppb (19) N/A N/A N/A 0.6 ppb (7) 28.0 μg/m3 (25) 6.3 μg/m3 (26) 64.0
 
Jan. 10, 2019, 2 p.m. 87.0 ppb (85) 63.0 ppb (60) N/A 24.0 ppb (22) N/A N/A N/A 1.0 ppb (11) 38.0 μg/m3 (35) 8.2 μg/m3 (34) 85.0
 
Jan. 10, 2019, 1 p.m. 79.0 ppb (77) 55.0 ppb (51) N/A 23.0 ppb (21) N/A N/A N/A 0.9 ppb (10) 36.0 μg/m3 (33) 12.3 μg/m3 (51) 77.0
 
Jan. 10, 2019, noon 61.0 ppb (57) 41.0 ppb (38) N/A 20.0 ppb (19) N/A N/A N/A 0.8 ppb (9) 28.0 μg/m3 (25) 7.2 μg/m3 (30) 57.0